Expertise rooted in over 40 years of technical heritage.
Our team has over four decades of research and development experience across the microwave industry. We’re a UK-based, microwave engineering company built on deep technology expertise and a commitment to excellence.
Driven by innovation and precision engineering, we develop microwave solutions that set new benchmarks for performance, reliability, and value. Diamond Microwave solves complex and difficult challenges and delivers results that customers can rely on.

DML’s Strategic Partnership with CPI-TMD Technologies Ltd
Back in 2020, as part of a strategic investment programme, West London based manufacturer of advanced equipment for the microwave industry, TMD Technologies Ltd (TMD), took a share in Diamond Microwave Ltd (DML), recognising DML as a specialist in high-power solid-state microwave amplifier products utilising gallium nitride (GaN) and GaAs technology. The strategic investment cemented an ongoing partnership in innovative, solid-state microwave products for aerospace and defence systems.
DML’s specialised technological expertise has proved particularly successful across the aerospace and defence industries and continues to complement the now named CPI-TMD Technologies Ltd’s, current technologies targeted at this market sector. Both companies continue to collaborate to push the boundaries of amplifier performance, to support CPI-TMD’s product portfolio.
CPI-TMD remains an ideal partner for DML, bringing the possibility of new channels through which to develop and exploit DML’s solid-state power amplifier technology.

TMD Technologies Division
Our Values.
Diamond Microwave’s core values underpin how we strive to act and represent ourselves, within the microwave industry and our busines community.

Integrity
We conduct our business with the highest standards of ethics, authenticity, reliability and compliance, taking full responsibility for our actions and honoring our commitments.

Long-term Partnerships
We work closely with our partners to understand their ever-evolving needs, deliver sustained trust, and provide value across the full lifecycle of every program.

Quality
We apply rigorous standards, disciplined processes, and continuous improvement to ensure our products and capabilities consistently meet all stakeholder requirements.
Meet Our Leadership Team.
Director
Howard Belk
Director
Richard Lang
Financial Controller
Matthew Taylor
General Manager
Craig Marshall
Our Accreditations.

ISO 9001:2015
Diamond Microwave Limited is certified to ISO 9001:2015, demonstrating our commitment to maintaining a strong quality management system, customer-focused approach, top leadership & management processes, and a strive for continuous improvement.
NE RDSC
Diamond Microwave is an Associate Member of the North East Regional Defence and Security Cluster (NERDSC), a strategically vital Defence and Security ecosystem, bringing together applied research, skills development & technological innovation.
Cyber Essentials
Cyber Essentials is the standard for cyber security recommended by the Government for all organisations. Developed by NCSC, the certification scheme is aligned to five technical controls designed to prevent common cyber security threats.
JOSCAR
Diamond Microwave Limited is JOSCAR registered, demonstrating our commitment to maintaining high standards of governance, compliance, and operational excellence across the defence, aerospace, and security sectors.
Diamond Microwave has been assessed by ACS Registrars as meeting the requirements of ISO 9001:2015




